Body tissue

Tissues

• 4 main types• Epithelium• Connective• Nervous• muscle

• Simple squamous• Cuboidal• Columnar• compound

• Simple squamous

• Cuboidal

• Columnar• Some have cilia to move

secretions along• Found in vilii in small intes

tine and trachea and bronchii

Compoundsimple

• For diffusion• Alveoli-capillaries• Lines ducts & tubes so

materials pass through• found in organs with glands• e.g. thyroid

• Often known as mucous membrane –layers of cells with basement membrane

• Lining of mouth, tongue

Compound keratinized Epithelium• simple compound

epithelium • + top layer of flattened

dead cells = • epidermis. • As the old cells rise to the

top they become filled with the protein

• keratin .• Protection from germs

and water• Found in • skin

Connective tissue• Most widely

distributed in body.• includes • fibrous tissues• fat• cartilage• bone• bone marrow• blood.

Connective tissue• As the name implies, connective tissues often:• binds/sticks other organs together• holds organs in place• cushions them• and fills space.

Connective tissues• Blood• Adipose• Areolar• Cartilage• bone

Extracellular material• Material found outside

the cell that is not made up of other cells

• This is known as the matrix.

Connective tissue

• Matrix occupies more space than the cells The cells are quite far apart

• Except in fat as the cells are in close contact and have large non living lipid (fat) droplets.

• The fat droplets have more non living than living tissue

Blood

• Blood is a connective tissue and each different type of blood cell and the matrix has a different function

• 1. What is the name given to the matrix?

Components of blood

plasma 55%White blood cells + platelets 1%

Red blood cells 44%

The average adult has ? Litres of blood?

5-6 litres

platelets

lymphocyte

erythrocyte

http://www.webschoolsolutions.com/patts/systems/bloodcells.jpg

Now visit some of the websites with animations about the blood

• Some of the links on the moodle can be viewed in college.

• Some will only work from home.• Start with this link

http://health.howstuffworks.com/adam-200028.htm

http://www.healthvideos.tv/video/17151-medical-animation-of-red-blood-cells.htmlhttp://www.wisc-online.com/objects/index_tj.asp?objID=AP14704